Sprayers



C. L. FORD May 7, 1963 SPRAYERS 2 sheets-skeet 1 Filed Oct. 14, 1960 A U m w H w III II i u A TTORNEXS United States Patent 3,088,679 SPRAYERS Charles L. Ford, St. Petersburg, Fla., assignor to Sprayers 8: Nozzles, Inc., St. Petersburg, Fla., a corporation of Florida Filed Oct. 14, 1960, Ser. No. 62,681 Claims. (Cl. 239318) This invention relates to a sprayer and more particularly concerns sprayers incorporating improved nozzle assemblies.

A general object of this invention is to provide improved sprayer constructions. The invention particularly contemplates sprayers having nozzle assemblies which may be readily and accurately positioned within the sprayer housing. The invention has particular applicability to aspirating sprayer arrangements.

A particular object of the invention is to provide a sprayer nozzle assembly which may be simply adjusted at the factory to the desired flow and aspirating rates.

A specific object of this invention is the provision in a sprayer of improved means for selecting different nozzle elements for producing different respective qualities of spray.

An additional specific object of the invention is to provide a versatile nozzle assembly of a standard construction which may be used without modification in any of several different types of sprayer housings.

Another specific object is to provide a nozzle assembly which may be easily removed from a sprayer housing and which may be readily locked within the sprayer housing.

A further specific object of the invention is to provide a simplified sprayer housing which may be formed of a plastic material with only approximately correct dimensions, and a precision metal nozzle assembly readily receivable into operative position in the housing.

A still further object of this invention includes the provision of a sprayer of simple and inexpensive construction which may be readily cleaned, maintained and manipulated and which is both efficient and durable.

The novel features which are believed to be characteristic of this invention are set forth with particularity in the appended claims. The invention itself, however, both as to its organization and method of operation, together with further objects and advantages thereof, may best be understood by reference to the following description taken in connection with the accompanying drawings, in which:

FIG. 1 is a side elevation view of a multiple nozzle turret type sprayer in accord with this invention, including representations in broken lines of a hose connected therewith, the receptacle for liquid to be aspirated and the tube being broken away;

FIG. 2 is a top plan view of the sprayer of FIG. 1, the receptacle portion being omitted;

FIG. 3 is a full transverse sectional view taken along line 33 of FIG. 2;

FIG. 4 is a front elevation view of the sprayer of FIG. 1, the receptacle portion being omitted;

FIG. 5 is a front elevation view of a modified multiple nozzle type sprayer in accord with a second embodiment of this invention, the receptacle being omitted and the aspirating tube being broken away;

FIG. 6 is a side elevation view of the sprayer of FIG. 5;

FIG. 7 is a side elevation view of a single nozzle assembly type sprayer in accord with a third embodiment of this invention, shown partially broken away and in section, the receptacle being omitted;

FIG. 8 is a top plan view of the sprayer of FIG. 7;

FIGS. 9 and 10 are enlarged detail section views of broken away portions of sprayer housings showing respective modified nozzle assemblies adapted for use in the several sprayers shown in FIGS. 1-8 and 11; and

FIG. 11 is a side elevational view of a fourth embodiment of a sprayer in accord with the invention, shown partially broken away and in section, the receptacle being omitted.

Referring now particularly to FIGS. 1 and 2 of the drawings, there is provided a sprayer 10 comprising a screw-on cap or cover 11 for a metal or glass receptacle 12 and an aspirating tube 13 extending downwardly from cap 11 into receptacle 12. Cap 11 comprises a housing 15 on which a head assembly in the form of a turret 16 is positioned. The turret head assembly 16 is seen to comprise a plurality of nozzle assemblies 31, 32 and 33 which are fixedly interconnected on a movable head member in the form of a plate 30. A valve stem 17, having a handle 18, extends inwardly into housing 15. Pipe portion 19 of housing 15 supports hose nut or connector 20 which inwardly receives the externally threaded end 21 of garden water hose 22, shown in broken lines in FIG. 1. Means for locking head assembly 16 within housing 15 and for releasing head assembly 16 is provided by deflector 23 rotatably secured to the upper surface or deck 14 of cap 11 by rivet 24. Deflector 23 comprises an upwardly extending deflecting surface 25 for deflecting the fluid stream which issues from the head assembly 16 and further comprises an upwardly extending cam-like arcuate edge flange or keeper 26 which engages and releasably locks head assembly 16 in housing 15.

A gasket 28 provides a fluid and air tight seal between cap 11 and receptacle 12 when cap 11 is screwed down onto receptacle 12. An air vent 27 is provided in cap 11 to prevent any vacuum build-up in the upper part 28 of receptacle 12 which might otherwise prevent fluid within receptacle .12 from being aspirated.

FlG. 3 specifically shows the orientation of the elements forming the sprayer 10. The head assembly 16 includes a triangular mounting plate 30 seated against front face 34 of housing 15, and a plurality of nozzle assemblies 31, 3'2 and 33 are equally spaced from one another in plate 30, as specifically shown in FIG. 4. Nozzle assembly 31 comprises a cylindrical body or nozzle element 31' which is positioned within passageway 35, passageway 35 extending transversely through housing 15, and element 31' is sealed therein by gaskets in the form of soft resilient rubber O-rings 36 and 37 which are mounted within respective annular channels 36 and 37 in nozzle element 31. As shown in FIG. 3, the portion 38 of nozzle element 31 between O-rings 36 and 37 is of .a smaller outside diameter than the outside diameter of the compressed O-rings 36 and 37. Portion 38 of nozzle element 31 is also smaller than the adjacent interior or inside surface 29 of passageway 35, thus forming a chamber 39 therebetween. Annular chamber 39 is defined between the O-rings 36 and 37 and between nozzle element portion 38 .and the inside surface 29 of housing 15 when nozzle assembly 31 is sealed within housing 15. A hollow bore 41 of a predetermined diameter passes from the inlet end or wall portion 40 to the output end or wall portion 40 of nozzle element 31' which serves to restrict the carrier fluid which is to pass therethrough into a stream and to direct the stream onto the deflector 23. A laterally extending intake hole or passage 42 extends through portion 38 of the cylindrical body or nozzle element 31 thus providing a communicating passage between hollow bore 41 and annular chamber 39 for fluid to be aspirated. An opening or conduit 43 extends downwardly from the inside surface 29 of housing 15 through cap 11. Placed within opening 43 is a tubular connector 45. Connector 45, having a flange 46, is afiixed to cap 11, and aspirating tube 13 fits .around connector 45. Opening 43 serves as d a communicating passage to conduct fluid from aspirating tube 13 into annular chamber 39 from whence the fluid passes through intake hole 42 into hollow bore 41 there to mix with the carrier stream passing longitudinally through nozzle assembly 31.

While intake hole 42 is shown as being vertically oriented to communicate with annular chamber 39 and opening 43, there is no necessity for this orientation, because the position of hole 42 with respect to opening 43 is not material to the eflicient operation of the sprayer 18. Regardless of the position of hole 42, whether it extends downwardly as shown, or laterally or upwardly, the hole is eifective to provide its intended function to admit fluid from chamber 39 into the nozzle bore 4-1.

Portion-38 of nozzle element 31 is shown as being of a smaller outside diameter than the outside diameter of the compressed O-rings 36 and 37 to form chamber 39, and it is important in accord with this invention that a chamber for fluid to be aspirated be formed between rings 36 and 37.

The other nozzle assemblies 32 and 33 are externally identical with nozzle assembly 31, but the internal diameter of the bores 48 and 49 within respective nozzle elements 32' and 33 are of different sizes to allow for selection of one or another desired ratio of aspirated fluid to carrier fluid emitted from the nozzle assembly. Each nozzle assembly is preadjusted to supply such fluids in a respective ratio.

When nozzle assembly 31 is within passageway 35 of housing 15, nozzle assemblies 32 and 33 fit within protective cavities, including cavity which extend inwardly'into housing 15 as shown in FIG. 2. Nozzle assembly 31 may be readily removed from passageway 35 by swinging deflector 23 to the position shown by broken lines in FIG. 2 and pulling plate 30 outwardly from front face 34 of housing 15. The turret head assembly 16 is then rotated until the desired nozzle assembly, for example nozzle assembly 33, is aligned with passageway 35; nozzle assembly 33 may then be inserted into passageway 35 until plate 30 engages front face 34 of housing 15 and the head assembly 16 is then locked in place by pivotally straightening deflector 23 to the position shown by full lines in FIG. 2.

Valve stem. 17 is rotatably mounted within vertical opening 50 of housing 15 and gaskets in the form of 0- rings 51 and 52 are seated on stem 17 to seal off the transverse passageway 35of housing 15 and prevent fluid leakage. Valve stem 17 includes an eccentric or cam portion 54 which permits valve body member 55 to be pressured against internal shoulder 56 of housing 15 when valve stem 17 is rotated until handle 18 assumes the OE position rearwardly toward connector 28. As seen in FIG. 3 when the handle is in the On position shown, cam portion 54 maintains body member 55' spacedly away from shoulder 56 which permits carrier fluid to flow from pipe portion 19 through transverse passageway 35 in housing 15 and suchvfluid is formed into a stream by thebore 41 of nozzle assembly 31. It is obvious that accurate. control of the degree of opening or amount of fluid passing between valve member 55 and shoulder 56 may be secured by rotating handle 18 and valve stem 17 to a desired intermediate position between the Off and On positions described above.

A portion 60 of connector 20, is internally threaded and a washer 61 is seated inwardly of connector against an extending shoulder 62, thus forming a water tight seal when portion 60'of connector 20' is coupled to threaded end 21 of hose 22, shown by broken lines in FIG. 1.

Hose nut or connector 20, having a shoulder 63, is mounted for rotation on plate 64 which is seated against shoulder 63, plate 64 being aflixed to pipe portion 19. Locking ring 65 retains plate 64 seated against shoulder 63 and thereby allows connector '28 to be freely rotatable around plate 64. A plurality of vents or ports 66 are provided in plate 64 which function .as air vents as will be indicated hereinafter.

An anti-siphon valve 67, comprising a rigid perforated plate 68 and a flexible member 69, is positioned within connector 20 and is retained between shoulder 62 and plate 64. Plate 68 includes a central portion 70 which is irnperforate and a ring portion 71 which is perforated. Flexible member 64 includes a flat portion 72 which is contiguous with ring portion 71 of plate 68-and a valve portion 73 which spans central portion 78 of plate 68. A valve of this type is further shown, described and claimed in US. Patent No. 2,875,776.

In the operation of the sprayer 10, with the handle 18 in the On position shown in FIG. 3, carrier fluid begins flowing through the perforated ring portion 71 of plate 68..

which forces layer 72 to separate away, from plate 68 and valve portion 73 opens inwardly of pipe 19. Layer 72 of flexible member 69 engages edge 75 of pipe 19therebysealing off air ports 66 and allowing the carrier fluid to flow through pipe 19 into passageway 35- in, housing 15,

The carrier fluid is then formed into a stream by the bore.

fluid then passes through intake hole 42 into bore 41 where the aspirated fluidv is mixed with the carrier fluid stream, the mixed fluid stream then issuing from the nozzle assembly toward deflecting surface 25 of deflector 23 which disperses the stream as desired.

When the carrier fluid is stopped by rotating handle 18 and valve stem 17 to the Oif position rearwardly towardpipe portion 19, the carrier fluid exerts a pressure on valve member 55 and forces member 55 to seat against shoulder 56 of housing 15 thereby preventing the carrier fluid from flowing into passageway 35.

However, when the carrier fluid is stopped at the source of the fluid supply, by'turning 011 the water supplied to.

hose 22, layer 72 of flexible member 69. returns to its former position flatly' against plate 68 and valve portion 73 is closed, and, consequently, the carrier fluid and aspirated fluid are prevented from back flowing through,

the perforated ring portion 71 of plate 68. At the same time air'from ports 66 becomes accessible inwardly'of pipe 19, passageway35 and bore41, thus destroying the vacuum or siphoning eflect created by the carrier fluid passing through, bore 41 in nozzle assembly 31.

There is shown in FIGS. 5 and 6 another embodiment.

of a sprayer in accord with this invention in which a head assembly in the form of a clip assembly 76 is provided for the sprayer 77. The head assembly 76 comprises a rectangularly shaped plate 78 and a plurality of cylindrical bodies or nozzle assemblies 79, 80 and 81 retained by head member or plate 78. The nozzle assemblies 79, 80 and 81 correspond to and may each be exactly in accord with. the above descriptions of nozzle assemblies 31, 32 and 33, respectively, the respective bore-s 82, 83 and 84 being of differing diameters as shown in FIG. 5. Head assembly 76 is shown as being locked in place by deflector 86 with nozzle assembly 80 disposed in operative position within housing 85. Housing is provided with a ledge 87 which receives flange 88 of clip plate 78. Nozzle assemblies 79 and 81 are spaced on opposite sides of nozzle assembly 80 sufflciently to allow nozzle assembly 79 to be disposed to one side 89' of housing 85 and to allow nozzle assembly 81 to be on the other side 90 of housing 85 when nozzle assembly 80 is disposed within housing 85.

Nozzle assembly 88 may be readily removed from housing 85 and another nozzle assembly, for example assembly 79, may be disposed within housing 85 by rotating deflector 86 until head assembly 76 is unlocked and by then pulling head assembly 76 outwardly from housing 85. Nozzle assembly 79 is then aligned with the housing passageway which though not shown, is similar to passageway 35 in FIG. 3, and which performs the functions thereof. Nozzle assembly 79 is then pushed toward housing 85 until plate 78 lies flat against housing 85 and deflector 86 is rotated back to the locking position shown in FIG. 6.

Valve stem 93 is substantially identical with valve stem 17 of FIG. 3, except that valve stem 93 is somewhat shorter to fit the smaller housing 85. The cap 94, tube 95, handle 96, pipe portion 97 and connector 98 are substantially in accord with the corresponding elements 11, 13, 18, 19 and 20 herein-before described. Valve stem 93 and handle 96 operate a valve (not shown) positioned internally of the sprayer 77 which is in accord with the previous description of FIG. 3.

Another embodiment in accord with the present invention is shown in FIGS. 7 and 8 wherein a sprayer 99 comprises a unitary assembly 100 which may be made of cast plastic although other materials would be suitable. Particular difliculties arise from the lack of dimensional stability of plastic materials which are overcome in the construction shown. The unitary assembly 100 comprises a cap portion 101, having an opening or conduit 102 therein, a housing portion 103, a pipe portion 104, a hose nut 105- and a deflector 106. Housing 103 is provided with a cylindrical passageway 109 extending from the pipe end portion 104 to the inwardly extending ring flange member or portion 107 of housing 103. Nozzle assembly 108 is slidingly positioned through the pipe end portion 104 before valve 123 is placed within hose nut 105 and flange portion 107 extending transversely of passageway 109 provides the means for retaining nozzle assembly 108 within passageway 109 after assemblage thereof.

Nozzle assembly 108 comprises a nozzle element 111 having a hollow bore 112 of a predetermined diameter. A pair of gaskets or O-rings 113 and 114 are seated spacedly away from each other on element 111 and the portion 115 of element 111 between O-rings 113 and 114 is of a smaller outside diameter than the diameter or the compressed O-rings 113 and 114. Portion 115 of element 111 is also seen to be smaller in cross section than the interior of passageway 109. A chamber 116, accordingly, is defined between inside surface 117 of housing 103 which forms passageway 109 and portion 115 of nozzle element 111. An intake hole or passage 118 extends laterally through element 111 between the hollow bore 112 and chamber 116. A connector 119 is aflixed within opening 102 in cap 101 and a tube 120 is fitted around connector 119. It will be apparent that the dimensions of passageway 109 may vary substantially without appreciable effect on the flow or aspirating rates, but that these rates depend upon the dimensions of nozzle element 111. Thus assembly 100 may be of plastic, while element 111 is of metal or other material having good dimensional stability.

As previously mentioned with respect to intake hole 42 in FIG. 3, it is not necessary that intake hole 118 be vertically positioned over opening 102 in cap 101, and it will be understood that assembly 100 will operate efliciently regardless of the part of chamber 116 with which the hole or passage 118 communicates.

An air hole 121 extends through the upper outside surface 122 of housing 103 and communicates with the chamber 116 formed between inside surface or interior 117 of housing 103 and portion 115 of nozzle element111. Hole 121 allows the user to control the aspirating action of the carrier fluid passing over intake hole 118 in nozzle assembly 108. With the hole 121 unobstructed the carrier stream will suck air rather than fluid into chamber 116. With the hole 121 manually closed, such as by the users finger or thumb, the carrier stream will aspirate fluid from chamber 116 through intake hole 118 into bore 112 and fluid will be sucked up through tube 120 into the chamber 116 due to the partial vacuum therein.

While hose nut is shown in FIG. 7 as being unitary with pipe portion 104, it is to be understood that hose nu-t 105 could be mounted for rotation as shown by FIG. 3, if desired. Hose nut 105 inwardly retains valve 123 and washer 124 which are substantially identical with the respective valve 67 and washer 61 previously described with reference to FIG. 3. An air vent 1-25 is provided in cap portion 101 and functions as air vent 27 previously described.

Another embodiment of the present invention is shown in FIG. 9 wherein sprayer housing is broken away to show a nozzle assembly 131 positioned within passageway 132. It is to be understood that nozzle assembly 131 is adaptable for use in any of the several sprayers shown in FIGS. l-8 and 1:1.

Nozzle assembly 131 comprises a nozzle element 134 having a hollow bore 135 in which is positioned input bushing 136 and output bushing 137. Bushings 136 and 137 are provided with respective bores 138 and 139, bore 138 being smaller than bore 139. A pair of gaskets or O-rings 140 and 141 are provided around nozzle element 134 which seal nozzle element 134 within passageway 132 in housing 130 and provides a chamber 142 therebetween. Chamber 142 communicates between intake hole 143 extending through nozzle element 134 and opening or conduit 144 extending through receptacle cap 145, opening 144 communicating with aspirating tube connector 146. Bushings 136 and 137 are provided within bore 135 so that the rate of supply of aspirated fluid .to be mixed with the carrier stream and the proportion of aspirated and carrier fluids may be adjusted. The tolerances of the main hollow bore 135 of nozzle element 134 need not be closely maintained because the proper mixt-ure of the stream may be adjusted by forcing bushing 137 into bore 135 until the proper mixed stream is obtained. Such adjustment may be made while the nozzle assembly is operating under test conditions prior to incorporation of the nozzle assembly in a sprayer. Thus stocks of preadjusted nozzle assemblies may be maintained for use in sprayers of any of several constructions.

In accord with another embodiment of the invention, a sprayer housing is broken away to show a nozzle assembly 151 positioned within passageway 152. It is to be understood that nozzle assembly 151 may be used in any of the several Sprayers shown in FIGS. 1-8 and 11.

Nozzle assembly 151 comprises a nozzle element 154, having a hollow bore 155, and gaskets or O-rings 156 and 157 are provided around nozzle element 154 to seal element 154 within passageway 152 to form a chamber 153 therebetween. Within intake hole 159 and extending through nozzle element 151 is an adjustable insert 160 which communicates between bore and chamber 158. Insert is adjustable so that the proper mixture of aspirated fluid and carrier fluid may be obtained. The extent to which tip 162 of insert 161 projects into the bore 155 of nozzle element 154 determines the degree of vacuum which will be obtained in aspirating tube connector 166, thereby determining the degree of mixing or proportion between the carrier stream and the aspirated fluid.

An opening or conduit 164 extending through receptacle cap 165 communicates between chamber 158 and aspirating tube 166. An air vent 167 extends through housing 150 and communicates with chamber 158. When vent 167 is closed, carrier fluid passing over insert 160 creates a vacuum within chamber 158, and, accordingly, fluid is aspirated through tube connector 166 into chamber 158 and through insert 160 where it is mixed with the carrier fluid, and thereafter the mixed fluid is sprayed. When the vent 167 is opened, the vacuum is destroyed and carrier fluid passes through nozzle element 151 without being mixed with aspirated fluid.

As hereinabove mentioned, the respective nozzle assemblies 131 in FIG. 9 and 151 in FIG. 10 may be used in any of the several sprayers shown in FIGS. 1-8 and ll. Nozzle assembly 131 is seen to be locked within passageway 132 of housing 130 by being releasably'caged.

between inwardly extending shoulder 132 and a flange 26 of a deflector 23 in accord with similarly identified elements previously clearly described with reference to FIG. 3. In FIG. 10, nozzle assembly 151 is seen to be retained within passageway 152 by an inwardly extending flange 107 in accord with the similarly identified flange previously clearly described with reference to FIG. 7.

There is shown in FIG. 11 another embodiment in accord with the present invention of a sprayer 174 in which a nozzle assembly 176 is provided within passageway 177 of housing 175. The clearance between the external surface 178 of nozzle element 179 and passageway 177 is'exaggerated in order that the functioning of air vent 2%!) may be more clearly understood. It is contemplated that the nozzle assembly 176 is adaptable for use in the several sprayers shown in FIGS. l-8. Likewise, the various nozzle assemblies shown in FIGS. 110 are adaptable for use in the sprayer 174 of FIG. 11.

Nozzle assembly 176 comprises a nozzle element 179 having a hollow bore 181 of a predetermined configuration. Hollow bore 181 extends from an inlet end portion 182 to an outlet end portion 183, an outlet bushing 184 being :adjustably positioned within outlet portion 183. Bushing 184 functions in the same manner as outlet bushing 137 in FIG. 9'. A pair of gaskets or O-rings 185 and 186.are seated spacedly away from each other on element 179 which seal nozzle element 179 within passageway 177 in housing 175 and provides a chamber 187 therebetween.

After nozzle assembly 176 has been inserted within passageway 177, the aspirating tube member or connector 190, which extends transversely of passageway 177, is positioned through opening or conduit 191 in cap 192 until connector 190 lockingly engages wall portion or shoulder 194 of nozzle element 179.

-As shown, intake hole 195 is in alignment with connector 19 0, although alignment is not necessary, as previously setforth with reference to intake hole 42 in nozzle assembly 31 of the sprayer of FIG. 3.

An air vent 200 extends through housing 175 and communicates with chamber 187. Vent 200 allows the user to control the aspirating action of the carrier fluid passing over intake hole 195 in nozzle assembly 176. With the vent 200 opened as shown the carrier stream will only cause air to be sucked through vent 269, whereas with the ventZtiO closed by the user, the carrier stream will aspirate fluid through intake hole 195 due to the vacuum within chamber 187 and aspirating tube 201.

While only certain preferred embodiments of this invention have been shown and described by way of illustration, many modifications will occur to those skilled in the art and it is, therefore, desired that it be understood that it is intended in the appended claims to cover all such modifications as fall within the true spirit and scope of this invention.

What is claimed as new and what it is desired to secure by Letters Patent of the United States is:

1. In a sprayer comprising a housing having an open interior and a removable nozzle assembly, said nozzle assembly comprising a body member having an inlet end and an outlet end and a bore extending from said inlet end to said outlet end, a pair of gaskets mounted in spaced relation about a selected portion of said body member between said inlet and outlet ends, said portion of said body member being positioned within said housing, said gaskets being compressed and sealing said body member within said housing and defining an annular chamber between said body member and said housing, said body member having a fluid intake hole communicating between said bore and said chamber, said housing including a conduit therethrough having one end communicating with said chamber and an opposite end opening outwardly of said housing adapted to receive fluid from an exterior source, a keeper member for engage- 8 ment with the-outlet end of said nozzle assembly, and means attached to said housing for efiecting engagement and disengagement of said keeper member with said nozzle'assembly for releaseably locking said assembly within said housing.

2. In a sprayer comprising in combination a housing and a movable head assembly, said head assembly comprising a mountingmember and a plurality of selectable nozzle assemblies afixed to said member, each said nozzle assembly having an inlet end and an outlet end and a bore extending from said inlet end to said outlet end, each said nozzle assembly including an intake hole extending inwardly from the outside of said nozzle assembly to its said bore, said housing comprising a passageway extending longitudinally therethrough and a conduit.

extending into saidhousing communicating at one end with said passageway and at the opposite end adapted to receive fluid exteriorly of said housing, each said nozzle assembly being selectively slidable into operative position in and out of said passageway, each said nozzle assembly having its intake hole so disposed as to be in communication with said conduit when the respective nozzle assembly is so disposed in operative position in said passageway, and means for releasably locking said head assembly to said housing with any selected individual one of said nozzle assemblies disposed in the operative position in said passageway, said means being operative releasably to retain such nozzle assembly therein.

3. In a sprayer comprising in combination a housing having a passageway extending longitudinally therethrough and a movable head assembly, said head assembly comprising a mounting member and a plurality of nozzle assemblies affixed to said member, each said nozzle assembly including a nozzle element having an inlet end and an outlet end and a bore extending from said,

inlet end to said outlet end, a pair of gaskets spacedly, mounted around a predetermined portion of each said element disposed outwardly of said element, each said element having an intake hole extending from the outside of its said portion to its said bore, said nozzle assemblies being individually selectable for disposition into operative position in said passageway, a selected one of said nozzle assemblies being inserted within said passageway, the gaskets of the selected nozzle assembly being, compressed to seal said selected nozzle assembly within said passageway and to form a chamber between said gaskets when such assembly is so positioned, said intake hole of the selected nozzle assembly communicating between its said bore and said chamber, said housing including a conduit therethrough communicating at one. end with said chamber and the other end adapted to receive fluid exteriorly of said chamber, and means for releasably locking said head assembly to said housing with the selected nozzle assembly within said passageway.

4. In a sprayer comprising in combination a cap and a movable head assembly, said cap comprising a housing having a passageway extending'longitudinallytherethrough, said head assembly comprising a mounting member and a plurality of nozzle assemblies aflixed to said member, each said nozzle assembly including a nozzle element having an inlet end and an outlet end and a bore extending from said inlet end to said outlet end,

a pair of gaskets spacedly mounted around a predetermined portion of each said element disposed outwardly of said element, each said element having an intake hole extending from the outside of its said portion to its said bore, said nozzle assemblies being individually selectable for disposition into operative position in said passageway, the gaskets of the selected nozzle assembly being compressed to seal the selected nozzle assembly within said passageway and to form a chamber between said gaskets when such assembly in so positioned, said intake hole of the selected nozzle assembly communicating between its said bore and said chamber, said housing including a conduit therethrough communicating at one end with said chamber and the other end adapted to receive fluid eXteriorly of said chamber, a member rotatably attached to said cap and engageable with said head assembly for releasably locking said head assembly to said housing with the selected nozzle assembly within said passageway.

5. In a sprayer comprising a housing having an open interior and a nozzle assembly, said nozzle assembly comprising a body member having an inlet end and an outlet end and a bore extending from said inlet end to said outlet end, a pair of gaskets spacedly mounted around a selected portion of said body member between its said ends, said body member being positioned within said interior of said housing, said gaskets being compressed between the outside of said body member and said interior of said housing and sealing said body member therewithin, a chamber being formed by and between said gaskets when said member is so sealed within said interior of said housing, said body member having an intake hole in said portion communicating between said bore and said chamber, an insert having a tip at one end thereof, said insert being adjustably positioned within said intake hole of said element with said tip being oriented adjacently toward said inlet end of said element and with said tip extending into said bore, the other end of said insert terminating in said chamber spacedly inwardly of said interior of said housing, a fluid passage along said insert communicating between said chamber and said bore, said housing including a conduit therethrough communicating at one end with said chamber and the other end of said conduit adapted to receive fluid exteriorly of said chamber and means engaging said nozzle assembly for retaining its said chamber in communication with said conduit.

References Cited in the file of this patent UNITED STATES PATENTS 2,132,333 Wendell et a1. Oct. 4, 1938 2,260,603 Budwig Oct. 28, 1941 2,281,229 Bullock Apr. 28, 1942 2,310,319 Rose Feb. 9, 1943 2,388,093 Smith Oct. 30, 1945 2,544,539 Manders Mar. 6, 1951 2,571,871 Hayes Oct. 16, 1951 2,719,704 Anderson et a1. Oct. 4, 1955 2,724,583 Targosh et a1 Nov. 22, 1955 2,827,329 Bullock Mar. 18, 1958 2,841,442 Skipwith July 1, 1958 2,946,519 Bellman July 26, 1960 FOREIGN PATENTS 520,171 Italy Mar. 18, 1955 627,906 Great Britain Aug. 18, 1949 

1. IN A SPRAYER COMPRISING A HOUSING HAVING AN OPEN INTERIOR AND A REMOVABLE NOZZLE ASSEMBLY, SAID NOZZLE ASSEMBLY COMPRISING A BODY MEMBER HAVING AN INLET END AND AN OUTLET END AND A BORE EXTENDING FROM SAID INLET END TO SAID OUTLET END, A PAIR OF GASKETS MOUNTED IN SPACED RELATION ABOUT A SLECTED PORTION OF SAID BODY MEMBER BETWEEN SAID INLET AND OUTLET ENDS, SAID PORTION OF SAID BODY MEMBER BEING POSITIONED WITHIN SAID HOUSING, SAID GASKETS BEING COMPRESSED AND SEALING SAID BODY MEMBER WITHIN SAID HOUSING AND DEFINING AN ANNULAR CHAMBER BETWEEN SAID BODY MEMBER AND SAID HOUSING, SAID BODY MEMBER HAVING A FLUID INTAKE HOLE COMMUNICATING BETWEEN SAID BORE AND SAID CHAMBER, SAID HOUSING INCLUDING A CONDUIT THERETHROUGH HAVING ONE END COMMUNICATING WITH SAID CHAMBER AND AN OPPOSITE END OPENING OUTWARDLY OF SAID HOUSING ADAPTED TO RECEIVE FLUID FROM AN EXTERIOR SOURCE, A KEEPER MEMBER FOR ENGAGEMENT WITH THE OUTLET END OF SAID NOZZLE ASSEMBLY, AND MEANS ATTACHED TO SAID HOUSING FOR EFFECTING ENGAGEMEMT AND DISENGAGEMENT OF SAID KEEPER MEMBER WITH SAID NOZZLE ASSEMBLY FOR RELEASEABLY LOCKING SAID ASSEMBLY WITHIN SAID HOUSING. 